I'm not going to speculate about why she's stepping down. I have no earthly idea. I have to think, though, that being out of the public spotlight will mostly end the incessant, vicious attacks against her family from the verminous left. Andrew Sullivan can now put his Trig-Truther tinfoil hat away, David Letterman can find some other minor child to tell rape jokes about, and the majority of the gay community can sleep easily knowing the bad ol' bogeyman is not going to eat it all up. The left will no doubt be throwing parties all over this weekend, much like the Munchkins did when they learned Dorothy landed a house on the Wicked Witch of the West.
I also imagine this will end the flood of ethics complaints against her from leftists with nothing better to do. The last I saw, there had been 15 of them in just a few months. I have to think they took appreciable time to fight — time that she could have been spending doing her job as Governor.
It doesn't look like this is the last we'll see of Palin in public office. I suspect that we won't see her in 2012 as a Presidential candidate but you never know. She's taken an unusual route to where she's gotten. I won't rule anything out.